package com.zzu.base.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.io.File;

/**
 * web层配置类,实现静态资源映射，将knife4j和Druid相关资源放行
 * @author Hva
 */
@Configuration
public class WebMvcConfig implements WebMvcConfigurer {
    @Value("${file.storage-root}")
    private String avatarStorageRoot;
    /**
     * 设置静态资源映射
     */
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        // 设置允许跨域的路径
        registry.addMapping("/**")
                // 设置允许跨域请求的域名
                .allowedOriginPatterns("*")
                // 是否允许cookie
                .allowCredentials(true)
                // 设置允许的请求方式
                .allowedMethods("GET", "POST", "DELETE", "PUT")
                // 设置允许的header属性
                .allowedHeaders("*")
                // 跨域允许时间
                .maxAge(3600);
    }
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        String avatarDir = avatarStorageRoot + File.separator + "user" + File.separator + "avatar" + File.separator;
        registry.addResourceHandler("/user/avatar/**")
                .addResourceLocations("file:" + avatarDir);
    }
}